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Finding the Fourth Proportional to 667,095.73, 920,575.06 and 372,747.80

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Solution

The fourth proportional to 667,095.73, 920,575.06 and 372,747.80 is: 514,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,095.73 : 920,575.06 = 372,747.80 : x
  2. Step 2: Convert to fraction form
    667,095.73/920,575.06 = 372,747.80/x
  3. Step 3: Cross multiply
    667,095.73x = 920,575.06 × 372,747.80
  4. Step 4: Simplify right side
    667,095.73x = 343,142,329,719.44
  5. Step 5: Solve for x
    x = 343,142,329,719.44/667,095.73
  6. Step 6: Final answer
    x = 514,382.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.